Understanding the Tretinoin Journey: What to Expect Week by Week If you’ve started using tretinoin for the first time, you’ve probably heard both the success stories and the dreaded tales of the “purge.” Tretinoin is a powerful retinoid derived from vitamin A, commonly prescribed for acne, fine lines, hyperpigmentation, and overall skin rejuvenation. While its benefits are well-documented, the adjustment phase can be confusing and, at times, discouraging. That’s why breaking down the tretinoin week by week timeline is one of the most effective ways to understand what’s happening to your skin and what you can expect along the journey. This guide walks you through the process week after week so you feel prepared, patient, and confident while your skin transforms.
Week 1–2: The Beginning Phase In the first two weeks, most users are excited to start their skincare transformation. However, this is also when your skin may begin reacting. Tretinoin speeds up cell turnover, which means dead skin cells shed faster than usual. While this process helps unclog pores and brighten skin in the long run, it can initially cause: